Testing how density affects caddisfly distribution along a detritus quality gradient
Abstract
As ecosystems continue to change, the ability to find high-quality habitats is becoming a valuable skill. Caddisflies are often found in pond environments with a variety of habitat qualities, such as food (detritus) quality. Asynarchus nigriculus, being highly mobile and having a unique dietary need for protein are a prime subject for testing the ability of caddisflies to find high-quality habitats when given a range of detritus qualities. A. nigriculus showed a preference for high-quality habitats both individually and in groups. Density was a relatively insignificant factor in their distribution, and aggressive interactions did not increase with density. This indicates that their distribution is based more on the availability of resources than on intraspecific interference interactions.
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